I am trying to change the format of my yaxis annotation for
chart.TimeSeries (really chart.CumReturns and chart.Drawdown) from numeric
decimal to a percentage.

Something like:

axis(2, at=pretty(y), labels=sprintf("%s%%", pretty(y) * 100)


I have been looking for a solution all afternoon with no success. I saw
nothing in the PerformanceAnalytics documentation. I tried suppressing the
y-axis (yaxt='n') in chart.TimeSeries and then add my own custom y-axis.
For my final effort,I copied the code from chart.TimeSeries and created my
own custom.chart.TimeSeries by tweaking the yaxis code to accomplish my
goals.

I would like to know if there is any elegant solution I am missing before I
pursue a more brute force method.

Thanks,
Paul
----
Paul Ramer, CAIA
PJR Investment Strategies, ltd.
paul.ramer@gmail.com
(303) 359-4192

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